Drivers are risking up to £114 million in rejected car insurance claims every single year because of seemingly innocent slip-ups such as forgetting to renew their road tax and even wearing the wrong footwear while driving.

That's according to new research by Uswitch, which revealed that two thirds of drivers are putting their future payouts at risk by making simple mistakes that could completely void their policy.

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Simple errors, which also involve forgetting to strap in your pet, could mean that British drivers lose out on £114million each year in unpaid claims based on an average claim amount of £2,671, according to Association of British Insurers' research.

A quarter of drivers admitted they did not realise these small errors could result in car insurance providers not paying out, with an additional third of drivers admitting they simply forget that such behaviours might impact on an insurance claim.

Simple mistakes that can void your insurance

Wearing high heels or flip flops - 25% of drivers

Leaving car unlocked - 24%

Putting off car maintenance - 21%

Forgetting to renew your MOT - 16%

Letting pet(s) roam free - 15%

Loaning out your car - 14%

Not updating details after changing jobs - 9%

Attached fluffy dice etc to rear view mirror - 9%

Forgetting to renew tax - 9%

Underestimating your mileage - 8%

The latest data from the ABI shows that over 43,000 car insurance claims are rejected a year.

Rod Jones, insurance expert at Uswitch.com , said: "We know the British public are increasingly time poor, so it’s unsurprising that motorists can be forgetful when it comes to locking up their cars or renewing their car MOT and taxes on time.

"With claims now running into the thousands of pounds, people can’t afford to make a careless mistake that could invalidate their cover and leave them out of pocket.

"It is therefore really important that drivers note down their key renewal dates, and avoid making the easy to forget mistakes to ensure they are covered by should they ever need to make a claim."